[Overview][Constants][Types][Classes][Procedures and functions][Index] |
[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
TTreeView is a control that displays a hierarchical list of items.
Source position: comctrls.pp line 3741
type TTreeView = class(TCustomTreeView) |
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published |
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Specifies the placement of the control on its Parent control. |
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The set of anchor definitions for this control. |
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property AutoExpand: Boolean; |
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Unfold a tree-item when user clicks it or an item activated by code. |
property BorderSpacing: TControlBorderSpacing; |
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Determines the inner and outer border spacing for this control. |
property BackgroundColor: TColor; |
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Color of background area of control. |
property BorderStyle: TBorderStyle; |
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Indicates the border style displayed around the control. |
property BorderWidth: TBorderWidth; |
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Width of the Border around the control; default is zero. |
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The background color of the control. |
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property Constraints: TSizeConstraints; |
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Contains the minimum and maximum Width and Height for the control. |
property DefaultItemHeight: Integer; |
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Default height for tree nodes in the control. |
property DisabledFontColor: TColor; |
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Font color used for tree nodes when the tree view is not enabled. |
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The operation when the control is dragged - Drag or Dock. |
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property DragCursor: TCursor; |
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The cursor shape shown while the control is dragged. |
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Allows the user to drag the control. |
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property Enabled: Boolean; |
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Determines whether the control reacts on mouse or keyboard input. |
property ExpandSignColor: TColor; |
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Color used to paint expand/collapse (fold/unfold) symbol (i.e. plus/minus symbol). |
property ExpandSignSize: Integer; |
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Size of expand/collapse (fold/unfold) symbol. |
property ExpandSignType: TTreeViewExpandSignType; |
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Sets the shape for the expand/collapse (fold/unfold) symbols. |
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The font to be used for text display in this control. |
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property HideSelection: Boolean; |
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Indicates if the current Selection is hidden when the control loses focus. |
property HotTrack: Boolean; |
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Additionally highlight/underline tree-item when mouse is over it. |
property HotTrackColor: TColor; |
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Font color used for the text in a tree node when hot tracking is enabled. |
property Images: TCustomImageList; |
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Image list which holds icons for the tree nodes in Items. |
property ImagesWidth: Integer; |
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Width for the Images used in the tree view control. |
property Indent: Integer; |
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Size in pixels by which each nested branching level is to be indented. |
property MultiSelect: Boolean; |
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Enables or disables selection of several tree-items at one time. |
property MultiSelectStyle: TMultiSelectStyle; |
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Additional options for the MultiSelect property. |
property ParentColor: Boolean; |
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property ParentFont: Boolean; |
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If True, the Font of the control will be the same as the one from the Parent. Default is True. |
property ParentShowHint: Boolean; |
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If True, the value of ShowHint for the control will be the same as the one from the Parent. Default is True. |
property PopupMenu: TPopupMenu; |
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A context-sensitive menu that pops up when the right mouse button is clicked over this control. |
property ReadOnly: Boolean; |
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Indicates whether the text (or caption) for tree nodes can be edited in the control. |
property RightClickSelect: Boolean; |
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Right-click also selects tree-item. Else it only calls PopupMenu. |
property RowSelect: Boolean; |
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When a tree-item is selected, paint selection background with full width. |
property ScrollBars: TScrollStyle; |
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Specifies the scroll bars displayed for the tree view control. |
property SelectionColor: TColor; |
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Color used to paint the background for the selected tree node in the control. |
property SelectionFontColor: TColor; |
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Color used to draw the text for a selected item. |
property SelectionFontColorUsed: Boolean; |
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Indicates if the selection font color is used for selected items. |
property SeparatorColor: TColor; |
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Color used to paint horizontal lines between tree nodes when enabled. |
property ShowButtons: Boolean; |
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Enables an expand/collapse (fold/unfold) icon for nodes with child nodes. |
property ShowHint: Boolean; |
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Enables Hint display for the control. |
property ShowLines: Boolean; |
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Enables the horizontal and vertical lines which join nodes in the tree hierarchy. |
property ShowRoot: Boolean; |
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Enables drawing of the root node indicator for the tree view control. |
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Allow to show items sorted: by caption, by Data property or both. |
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property StateImages: TCustomImageList; |
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Image list with the bitmaps used to represent the state for nodes in the tree. |
property StateImagesWidth: Integer; |
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Width for the bitmaps in the StateImages property. |
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Indicates the navigation order for the control when the user presses the Tab or Shift+Tab key. |
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property TabStop: Boolean; |
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Enables or disables navigation using the Tab key. |
property Tag; |
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property ToolTips: Boolean; |
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Show tooltip (hint) for a tree-item when the item is too long to fit by width and mouse is over it. |
property Visible: Boolean; |
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Allows the control, and all of its children, to be displayed or hidden. |
property OnAddition: TTVExpandedEvent; |
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Event handler signalled when a tree node is added to the tree node Items in the control. |
property OnAdvancedCustomDraw: TTVAdvancedCustomDrawEvent; |
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OnAdvancedCustomDraw - event handler for advanced custom drawing. |
property OnAdvancedCustomDrawItem: TTVAdvancedCustomDrawItemEvent; |
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OnAdvancedCustomDrawItem - event handler for advanced custom drawing item. |
property OnChange: TTVChangedEvent; |
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OnChange - specialized event handler for a change in the TreeView. |
property OnChanging: TTVChangingEvent; |
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OnChanging - specialized event handler while TreeView is being changed. |
property OnClick: TNotifyEvent; |
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Notification handler for mouse clicks. |
property OnCollapsed: TTVExpandedEvent; |
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OnCollapsed - specialized event handler when part of the tree is collapsed. |
property OnCollapsing: TTVCollapsingEvent; |
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OnCollapsing - specialized event handler while part of the tree is being collapsed. |
property OnCompare: TTVCompareEvent; |
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OnCompare - specialized event handler for comparisons within the TreeView. |
property OnContextPopup: TContextPopupEvent; |
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Invoked when a context-sensitive pop-up menu is requested. |
property OnCreateNodeClass: TTVCreateNodeClassEvent; |
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Event handler signalled to get the class reference used to create new tree nodes. |
property OnCustomCreateItem: TTVCustomCreateNodeEvent; |
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OnCustomCreateItem - event handler for custom item creation. |
property OnCustomDraw: TTVCustomDrawEvent; |
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OnCustomDraw - event handler for custom drawing. |
property OnCustomDrawItem: TTVCustomDrawItemEvent; |
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OnCustomDrawItem - event handler for custom drawing item. |
property OnCustomDrawArrow: TTVCustomDrawArrowEvent; |
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Event handler signalled to custom draw expand or collapse indicators. |
property OnDblClick: TNotifyEvent; |
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Event Handler for double mouse clicks. |
property OnDeletion: TTVExpandedEvent; |
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Event handler signalled when a node is deleted from the node tree. |
property OnDragDrop: TDragDropEvent; |
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This handler determines the action on an drop onto this control, in a drag-drop operation. |
property OnDragOver: TDragOverEvent; |
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Event handler for a control being dragged over this control. |
property OnEdited: TTVEditedEvent; |
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OnEdited - specialized event handler when the TreeView has been edited. |
property OnEditing: TTVEditingEvent; |
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OnEditing - specialized event handler while a TreeView is being edited. |
property OnEditingEnd: TTVEditingEndEvent; |
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Event handler signalled when EndEditing is called for the control. |
property OnEndDrag: TEndDragEvent; |
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Notification handler for the end of a drag operation. |
property OnEnter: TNotifyEvent; |
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Handler for control receiving the focus. |
property OnExit: TNotifyEvent; |
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Handler for control loosing the focus; This is a good place for checking the finished user input. |
property OnExpanded: TTVExpandedEvent; |
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OnExpanded - specialized event handler when a TreeView has been expanded. |
property OnExpanding: TTVExpandingEvent; |
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OnExpanding - specialized event handler while a TreeView is being expanded. |
property OnGetImageIndex: TTVExpandedEvent; |
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OnGetImageIndex - event handler for finding the index of an image. |
property OnGetSelectedIndex: TTVExpandedEvent; |
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OnGetSelectedIndex - event handler for finding index of selected item. |
property OnHasChildren: TTVHasChildrenEvent; |
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Event handler signalled to determine if a given node in the tree view has child nodes. |
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Handler for keyboard key pressed. |
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property OnKeyPress: TKeyPressEvent; |
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Handler for a character entered by the user. |
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Event handler signalled when a key up event has occurred for the control. |
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property OnMouseDown: TMouseEvent; |
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Event handler signalled when a mouse down event is handled for the control. |
property OnMouseEnter: TNotifyEvent; |
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Event handler signalled when the mouse pointer has entered the control. |
property OnMouseLeave: TNotifyEvent; |
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Event handler signalled when the mouse pointer has left the control. |
property OnMouseMove: TMouseMoveEvent; |
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Event handler for mouse movement within the control. |
property OnMouseUp: TMouseEvent; |
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Event handler signalled when a mouse up event is handled for the control. |
property OnMouseWheel: TMouseWheelEvent; |
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Event handler for mouse wheel turned. |
property OnMouseWheelDown: TMouseWheelUpDownEvent; |
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Event handler for downward movement of mouse wheel. |
property OnMouseWheelUp: TMouseWheelUpDownEvent; |
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Event handler for upward movement of the mouse wheel. |
property OnMouseWheelHorz: TMouseWheelEvent; |
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Event handler for horizontal movements of the mouse wheel. |
property OnMouseWheelLeft: TMouseWheelUpDownEvent; |
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Event handler for left movements of the mouse wheel. |
property OnMouseWheelRight: TMouseWheelUpDownEvent; |
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Event handler for right movements of the mouse wheel. |
property OnNodeChanged: TTVNodeChangedEvent; |
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Event handler signalled when the text for a tree node has been changed. |
property OnResize: TNotifyEvent; |
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Notification handler for a resize of the control. |
property OnSelectionChanged: TNotifyEvent; |
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Event handler signalled when the selection in the tree view control is changed. |
property OnShowHint: TControlShowHintEvent; |
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Event handler signalled when a hint window is displayed for the control. |
property OnStartDrag: TStartDragEvent; |
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Event handler for the start of a dragging operation. |
property OnUTF8KeyPress: TUTF8KeyPressEvent; |
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Handler for a character entered by the user. |
property Options: TTreeViewOptions; |
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The set of options enabled in the tree view control. |
property Items: TTreeNodes; |
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The container with the TTreeNode instances used in the control. |
property TreeLineColor: TColor; |
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Color used to draw the lines which connect the nodes in the tree. |
property TreeLinePenStyle: TPenStyle; |
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Style of the TPen used to draw lines used to connect nodes in the control. |
end; |
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TTreeView is a control that displays a hierarchical list of items. |
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Ancestor class for TTreeView. |
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The base class for windowed controls which paint themselves. |
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Implements a windowed control which can contain other child controls. |
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The base class for visible controls. |
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The base class for LCL components which have an associated widget. |
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TComponent |
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TObject |
Use a TTreeView to display a hierarchical list of items. Items are shown by their caption and an optional bitmap.
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Ancestor class for TTreeView. |
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How to use StdCtrls, ComCtrls or ExtCtrls. |